Entries starting with B

623 entries.

bingo

adjectiveAviation maintenanceslang

Just sufficient to return to base (or, alternatively, to divert to an alternative airfield). (also written Bingo or BINGO)

biodynamic

Of, or relating to a form of organic agriculture with mystical and holistic elements, based on the teachings of Rudolf Steiner.

birdsmouth

A notch cut into the underside of a rafter to ensure that it does not move when resting on the wall plate running across the top of a wall; a similar notch in other timber components.

biscuit

A thin oval wafer of wood or other material inserted into mating slots on pieces of material to be joined to provide gluing surface and strength in shear.

biscuitry

The process of inserting biscuits (thin ovals of wood or other material) into mating slots in order to provide a gluing surface.

bite

A blank on the edge or corner of a page, owing to a portion of the frisket, or something else, intervening between the type and paper.

bitrate

The frequency at which bits (binary digits) pass a given physical or metaphorical point, measured in bps (bits per second).

black box

A flight recorder; the brightly colored cockpit voice recorders and flight data recorders in an aircraft designed to aid in determining the cause of an accident.

black hole

A dangerous optical illusion that can occur on a nighttime approach with dark, featureless terrain between the aircraft and a brightly-lit runway, where the aircraft appears to the pilots to be higher up than it actually is, potentially triggering a premature or overly-steep descent and a crash short of the runway.

black noise

Technical silence; noise that has a frequency spectrum of predominantly zero power level over all frequencies except for a few narrow bands or spikes.

black start

The process of restoring an electric power station or part of an electric grid to operation without relying on the external electric power transmission network.

black tin

Tin ore (cassiterite), when dressed, stamped and washed, ready for smelting. It is in the form of a black powder, like fine sand.

blackwash

Public campaigns and advertising funded by the coal industry to draw attention away from environmentally unsustainable practices or to justify exclusion from carbon taxes.

blackwork

A form of counted-thread embroidery that is usually stitched on even-weave fabric with a twisted thread.

blank

A piece of material roughly cut, forged, cast, etc. to the size and shape of the thing to be made, and ready for the finishing operations; (coining) the disc of metal before stamping.

blanketing

The provision of a layer under the trackbed to prevent clay subsoil and water being forced to the surface by the weight of trains.

blanking

A metalworking process to form the rough shape of a sheet-metal workpiece.

blast furnace

An industrial furnace in which ore is smelted to metal, the process being intensified by a blast of hot air.

blastpipe

A pipe forming part of the exhaust system of a steam locomotive that discharges exhaust steam from the cylinders up into the smokebox beneath the chimney in order to increase the draught through the firebox; this speeds up the release of smoke through the chimney.

bleed

A narrow edge around a page layout, to be printed but cut off afterwards (added to allow for slight misalignment, especially with pictures that should run to the edge of the finished sheet).

bleed hole

A small, purposeful opening found in objects (e.g. glass panes, metal plates, airplane windows, etc.) to equalise air pressure and prevent condensation and fogging.

blender

A subtly patterned fabric printed in different shades of a single color, often used in place of a solid to create visual texture.